Improvement in governors



@uiten tat atwtffic.

THMAS B. vMCCONAUGrHlilY, OF NEWARK, DELAWARE.

Letters Patent No. 64,435, elated May 7, 1867.

IMPROVEMENT IN GOVERNORS.

l atlgt dgemle nitriet tu it lgcse tettcr 'ateut :rin mating pmt nf tigestmt.

TO ALL WHOM IT MAY CONCERN:

Y Be it known that I, THOMAS B. MCCONAUGHEY, of Newark, Delaware, haveinvented certain new and useful Improvements in Governors for SteamEngines; and I hereby declaro that the' following is a true, full, andexact description of the same, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon.

Figure I in the annexed drawings, which make a part of thisspecification, represents a plan view of my governor. Y

Figure 2 is a central longitudinalvertical section of the same.

The letter B, in dg. I, designates the main or bed-piece, to which thegovernor is attached. Upon the face of the main piece B the twogovernor-arms a a are placed. These arms are provided at their outerends with balls, as usual, and are kept in position on the face of mainpiece B by ther transverse hars e e, the openings under thesaid'barsheing suiciently wide to admit of the lateral play. of .thearms a a. Between the inner ends of arms a a is the axle g, on which thecollar 0l is designed to work. The collar d is formed with a flangearound its bottom, which, when the collar is in position, will restonthe surface of arms a a. c c represent two gum-elastic springs, placedon opposite sidcsof collar d. These springs are wrapped at their centrearound a rbolt on the surface of arms a a; and the opposite divisions,inclining inwards at a slight angle, are fastened at their respectiveends to blocks on the twosides of main piece B. s s represent two smallcylindrical elevations, placed on the inner ends of arms a a. Inthickness the said elevations are made to correspond with the width ofthe ange on collar cl, and are intended to increase the friction oncollar d when it is required. 'lo pulley f, which is made solid withcollar cl, a string is attached, which: is fastened at its other end tothe valve or brake-lever. I

i The operation of my governor is as follows: 'The main piece is'attached either to a. ily-wheel or shaft, and the cord n isfastened tothe valve or brake-lever, as the case may be. When the governor is setin motion the arms a a will be driven from Athe centre by centrifugalforcc,-,and thev elevations s made to press against the flange on thecollar d, and by increasing the friction on said collar will cause it torevolve with the axle, and wind up the cord s, which, being tied to thevalve, as above stated, will check the speed of -the engine.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

5 1. The governor-arms a a, in combination with the main piece B andloose collar d, as and for the purpose set forth.

2.l The springs c c, in combination with governor-arms a a,substantially as and for the purpose specified.

' THOS; B. MCCONAUGHEY.

Witnesses:

ALEXANDER WILSON, JOHN J. HERDMAN.

